https://devzone.nordicsemi.com/f/nordic-q-a/60090/dfu-over-usb-serial-from-embedded-hostI would like to connect an nRF52833 to a host through UART-over-USB. The host needs to be able to update the nRF52. HOWEVER, the host is itself an embedded device, not running an OS. Assuming I can generate a new encrypted HEX file representing the updateen-USTelligent Community 13Tue, 14 Apr 2020 21:45:39 GMThttps://devzone.nordicsemi.com/thread/244552?ContentTypeID=1Tue, 14 Apr 2020 21:45:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5ef34973-d34b-42e2-b4bd-b140ee97f6fcPierre Landau<p>Thank you. This is exactly what I was looking for.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/244477?ContentTypeID=1Tue, 14 Apr 2020 13:54:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3ed454ce-adeb-4def-aa02-21009a553ed7Hung Bui<p>Hi Pierre,&nbsp;</p> <p>The <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/lib_dfu_transport.html?cp=7_1_3_5_2">DFU protocol&#39;s documentation</a>&nbsp;would be your best source of reference.&nbsp;</p> <p>I also made an example for UART DFU from a nRF52 to a nRF52 that you can have a look, <a href="https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader#h108sjziaxo3m81rkgr1has5r1d72qtu">here</a>.</p><div style="clear:both;"></div>